System Test - Carrier AQUAZONE 50PSW036-360 Installation And Service Instructions Manual

Output EH2 will beoffifFP1isgreater than 45Fand FP2
(when shorted) is greater thanll0 F during Heating S tage 3
mode. This condition willhave a30-second recognition time.
Also, d uring H eating Stage 3mode, EH1, EH2, fanenable, and
fan speed willbeONif Ginput isnot a ctive.
EMERGENCY HEAT- In emergency heat m ode, thefan
enable and fanspeed relays a re turned o n.The EH1output is
turned o nilrnnediately. Withcontinuing emergency heat d e-
man& EH2will turnonafter 5 minutes. Fan enable andfan
speed relays a re turned o ffafter a 60-second delay. The control
reverts tostandby mode.
Output EH1, E H2, f anenable, and fan speed w ill beONif
the Ginput i snotactive d uring e mergency heat mode.
COOLING STAGE 1- In Cooling S tage 1 mode, t hefan
enable, compressor and RVrelays a re turned o nilrnnediately.
If configured as stage 2 (DIPswitch s et t oOFF) t hen the com-
pressor and fan will not t urn onuntil t here isastage 2 demand.
The fanenable and compressor relays a returned o ff ilrnnedi-
ately when the Cooling S tage 1 demand isremoved. The con-
trolreverts t ostandby mode. The RVrelay remains onuntil
there is a heating d emand. If there is a master/slave ordual
compressor application, allcompressor relays a nd related func-
tions w ill track w iththeir a ssociated DIPswitch 2 onS1.
COOLING STAGE 2 - In Cooling S tage 2 mode, thefan
enable, compressor and RVrelays r emain o n. T he fanspeed re-
layis turned o nhmnediately and turned o ffonce theCooling
Stage 2 demand is removed. Thecontrol reverts t oCooling
Stage 1 mode. If there isamaster/slave ordual c ompressor ap-
plication, allcompressor relays a nd related f unctions willtrack
withtheir a ssociated DIPswitch 2 onS1.
NIGHT LOWLIMIT(NLL)STAGED HEAT1NG -- In NLL
staged h eating mode, t he override (OVR)inputbecomes
active and is recognized asa callforheating a nd thecontrol
will hmnediately gointoa Heating S tage 1 mode. Withan
additional 30minutes ofNLLdemand, thecontrol willgointo
Heating S tage 2 mode. Withanother additional 30minutes of
NLLdemand, the control willgointoHeating Stage 3mode.
SYSTEM TEST
System testing provides the ability to check the control
operation. The control enters a 20-minute Test mode by mo-
mentarily shorting the test pins. All thne delays are increased
15 times. See Fig. 15.
0 _ _ _c-C-G__ TEST
BR BRG MODE
PINS
C
R
JW3 #"--% FP1
g--,,.
Fig. 15 -- Test Mode Pins Location
Test Mode-
To enter Test mode on Complete C or
Deluxe D controls, cycle the power 3 thnes within 60 seconds.
The LED (light-emitting diode) will flash a code representing
the last fault when entering the Test mode. The alarm relay will
also power on and off during Test mode. See Tables 10-12. To
exit Test mode, short the terminals for 3 seconds or cycle the
power 3 times within 60 seconds.
NOTE: Deluxe D control has a flashing code and alarm relay
cycling code that will both have the same numerical label.
For example, flashing code 1 will have an alarm relay cycling
code 1. Code 1 indicates the control has not faulted since the
last power off to power on sequence.
Table 10 -- Complete C Control Current LED
Status and Alarm Relay Operations
DESCRIPTION OF
LED STATUS OPERATION
Normal Mode
On
Off
Slow Flash
Fast Flash
Flashing
Code 1
Flashing
Code 2
Flashing
Code 3
Flashing
Code 4
Flashing
Code 5
Flashing
Code 6
Flashing
Code 7
Flashing
Code 8
Flashing
Code 9
Normal Mode with
PM Warning
Control is non-functional
Fault Retry
Over/Under
Voltage Shutdown
Lockout
Test Mode -- No fault
In
memory
Test Mode -- HP Fault
In
memory
Test Mode -- LP Fault
In
memory
Test Mode -- FP1 Fault
In
memory
Test Mode -- FP2 Fault
In
memory
Test Mode -- CO Fault
In
memory
Test Mode -- Over/Under
shutdown in memory
Test Mode -- PM
in memory
Test Mode -- FP1/FP2
swapped fault in memory
LEGEND
CO -- Condensate Overflow
FP -- Freeze Protection
HP -- High Pressure
LED -- Light-Emitting Diode
LP -- Low Pressure
PM -- Performance Monitor
ALARM RELAY
Open
Cycle
(Closed 5 sec.,
Open 25 sec.)
Open
Open
Open
(Closed after
15 minutes)
Closed
Cycling Code 1
Cycling Code 2
Cycling Code 3
Cycling Code 4
Cycling Code 5
Cycling Code 6
Cycling Code 7
Cycling Code 8
Cycling Code 9
NOTES:
1. Slow flash is 1 flash every 2 seconds.
2. Fast flash is 2 flashes every 1 second.
3. EXAMPLE: "Flashing Code 2" is represented by 2 fast flashes followed
by a lO-second pause. This sequence will repeat continually until the
fault is cleared.
Table 11 -- Complete C Control LED Code and
Fault Descriptions
LED FAULT DESCRIPTION
CODE
1 No fault in memory There has been no fault since
the last power-down to power-up
sequence
2 High-Pressure Switch HP Open Instantly
3 Low-Pressure Switch LP open for 30 continuous
seconds before or during a
call (bypassed for first
60 seconds)
4 Freeze Protection FP1 below Temp limit for
Coax -- FP1 30 continuous seconds
(bypassed for first 60 seconds of
operation)
5 Freeze Protection Air FP2 below Temp limit for
Coil -- FP2 30 continuous seconds
(bypassed for first 60 seconds of
operation)
6 Condensate overflow Sense overflow (grounded) for
30 continuous seconds
7 Over/Under Voltage "R" power supply is <19 vac
(Autoreset) Shutdown or >30 vac
8 PM Warning Performance Monitor
Warning has occurred.
9 FPI and FP2 FP1 temperature is higher than
Thermistors are FP2 in heating/test mode, or FP2
swapped temperature is higher than FP1
in cooling/test mode.
LEGEND
FP -- Freeze Protection
HP -- High Pressure
LP -- Low Pressure
2O